5 Important Concepts 14.Steroeoloctyw-nPraerenefenaomatonoi olution on of en 99 5 Important Concepts 14. Stereoselectivity – Preference for the formation of one stereoisomer when several are possible 15. Resolution – Separation of enantiomers • Reaction with a pure enantiomer of a second chiral compound and separation of the diastereomers • Chiral chromatography